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tcg: pass down TranslationBlock to tcg_code_gen

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My later debugging patches need access to the origin PC which is held in
the TranslationBlock structure. Pass down the whole structure as it also
holds the information about the code start point.

Backports commit 5bd2ec3d7b47b2252745882795d79aef36380fb7 from qemu
This commit is contained in:
Alex Bennée 2018-02-22 09:27:56 -05:00 committed by Lioncash
parent bafc81b1d3
commit bc5d7c5e1d
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GPG key ID: 4E3C3CC1031BA9C7
3 changed files with 5 additions and 5 deletions
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6
qemu/tcg/tcg.c
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@ -2379,7 +2379,7 @@ static void dump_op_count(void)
#endif
int tcg_gen_code(TCGContext *s, tcg_insn_unit *gen_code_buf)
int tcg_gen_code(TCGContext *s, TranslationBlock *tb)
{
int i, oi, oi_next, num_insns;
@ -2438,8 +2438,8 @@ int tcg_gen_code(TCGContext *s, tcg_insn_unit *gen_code_buf)
tcg_reg_alloc_start(s);
s->code_buf = gen_code_buf;
s->code_ptr = gen_code_buf;
s->code_buf = tb->tc_ptr;
s->code_ptr = tb->tc_ptr;
tcg_out_tb_init(s);

2
qemu/tcg/tcg.h
View file

@ -515,7 +515,7 @@ void tcg_context_free(void *s); // free memory allocated for @s
void tcg_prologue_init(TCGContext *s);
void tcg_func_start(TCGContext *s);
int tcg_gen_code(TCGContext *s, tcg_insn_unit *gen_code_buf);
int tcg_gen_code(TCGContext *s, TranslationBlock *tb);
void tcg_set_frame(TCGContext *s, TCGReg reg, intptr_t start, intptr_t size);

2
qemu/translate-all.c
View file

@ -1236,7 +1236,7 @@ TranslationBlock *tb_gen_code(CPUState *cpu,
the tcg optimization currently hidden inside tcg_gen_code. All
that should be required is to flush the TBs, allocate a new TB,
re-initialize it per above, and re-do the actual code generation. */
gen_code_size = tcg_gen_code(tcg_ctx, gen_code_buf);
gen_code_size = tcg_gen_code(tcg_ctx, tb);
if (unlikely(gen_code_size < 0)) {
goto buffer_overflow;
}